Countersunk Head Self-Tapping Screws
Product Overview
The zinc-yellow countersunk Torx fiberboard screw is a high-strength self-tapping screw specifically designed for woodworking connections. Made of hardened carbon steel with a colored zinc plating and passivation treatment, it offers excellent mechanical performance and corrosion resistance.
Featuring a countersunk tapered head, a Torx drive recess, and a self-tapping sharp tip with wide-spaced threads, this screw can be driven directly into wood and various engineered wood products without pre-drilling. It is one of the most widely used fastening accessories in furniture assembly, interior decoration, and woodworking DIY projects. Known for its efficiency, reliability, and clean finish, it is the preferred choice for panel connections.
Product Applications
Furniture Assembly: Connecting components of panel-based or solid wood furniture such as wardrobes, cabinets, tables, and chairs.
Interior Decoration: Fixing flooring, wall panels, ceiling joists, and door/window hinges.
Woodworking DIY: Building shelving, wooden crates, handicrafts, and other wood-based projects.
Other Scenarios: Basic fastening in light wooden structures such as wooden packaging and pallets.
Product Features
Color Zinc Coating – Rust-Resistant & Durable: The yellow zinc passivation layer provides superior corrosion resistance compared to ordinary white zinc, effectively protecting against moisture in indoor environments and extending service life.
Torx Drive – Efficient & Non-Slip: The Torx recess offers a large contact area with the driver bit, ensuring even force distribution and reducing the risk of cam-out or stripping. Ideal for power tools, making installation quick and hassle-free.
Countersunk Head – Clean Installation: The tapered countersunk head sits flush with the material surface after installation, leaving no protrusions, avoiding snagging, and allowing for subsequent finishing work without interference—combining functionality with aesthetics.
Hardened Self-Tapping – Strong & Vibration-Resistant: The hardened carbon steel substrate resists breakage, while the wide-thread, sharp-tip design provides a strong bite and excellent holding power, reducing the risk of loosening and minimizing wood splitting.
| Material | Carbon steel |
| Surface treatment | Color zinc plating |
| Head type | Cup head |
| Slot type | Torx recess |
| Thread type | Deep thread |
| Screw diameter | Approx. 4.2mm |
| Screw length | Optional (20mm to 50mm) |
| Screw type | Self-tapping screw |
| Corrosion resistance | High (suitable for humid environments, such as kitchens and bathrooms) |
| Applicable tools | Torx screwdriver or power tools |

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malingfei@linghongscrew.com

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